im going to spain too, here are some things you could take if you have them ,
books
phone
ipod
neck pillow
makeup?
hairbrush
chewing gum/mints
if you have started your period then sanitary towels if you are going to be on.
pens/paper
d.s and games
magnetic board games
jewellary?
Money (unless your mum/dad are taking the money.)
Sweets
Eye Mask (to get some sleep on the coach/plane.)
thats all i can think of sorry..x:more crackers::emot2: